Method of making paper bags



(No Model.)

B. E. CLAUSSEN.

METHOD OF MAKING PAPER BAGS.

No. 426,773. PatentedApr. 29, 18.90.

INVENTOR rINESSES we NORRIi FETERS ca, mom-u'rnm, wAsnmuTcN, n. c.

' third folding operation.

UNITED STATES PAT NT OFFICE.

EDWVARD E. CLAUSSEN, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE UNION PAPER BAG MACHINE COMPANY, OF PHILADELPHIA,

PENNSYLVANIA.

METHOD OF MAKING PAPER BAGS.

SPECIFICATION forming part of Letters Patent No. 426,773, dated April. 29, 1890.

Application filed February 5, 1890 Serial No. 339,240. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD E..CLAUSSEN, of the city and county of Hartford, State of Connecticut, have invented a new and useful Method of Making Paper Bags, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part of thisspecification.

My invention relates to the forming of bellows-sided satchel-bottomed bags; and it consists of a new method of making said bags, which method will be best understood as described in connection with the drawings in which it is illustrated, and in which the figures show in the order in which they are numbered the various steps of my method.

Figure 1 is a perspective view of a tubular blank such as I use in my process. Fig. 2 illustrates the first folding operation. Fig. 3 shows the second folding. Fig. 4 shows the blank clamped between blocks preparatory to making the third folds. Fig. 5 shows the Fig. -6 shows the fourth folding. Fig. 7 illustrates the blank after the completion of the fourth folding operation. Fig. 8 shows the fifth folding operation. Fig. 9 shows the sixth folding, and Fig. 10 represents the completed bag.

I first prepare a plain tube or bag-blank, such as is shown in Fig. 1 and marked A. Next I spread open one end of the blank into what is known as the diamond fold, as shown in Fig. 2, the diamond being marked 1), and the transverse line upon which the blank is opened indicated by b. I next fold a the diamond down upon itself about line b, as

shown in Fig.3.

The next step of the process proper consistsin spreading out the blank into the H The edges extending beyond the holders are v then bent as shown in Fig. 5, giving the blank the H form and the sides of the bag being defined by the folds a a. This folding also creases the paper on the lines I), which define the bottom of the sides of the bag. The sides are then folded down upon themselves about the central line a, as is shown in Figs. 6 and 7. The diamond is then again spread out, as shown in Fig. 8 at B, and the bag then completed by folding and pasting down the ends of the diamond in the usual Way, as shown in Figs. 9 and 10.

Having now described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

The method of making a bellows-folded satchel-bottomed bag, which consists in forming a plain tube, spreading open one, end thereof into a diamond fold, folding the diamond down upon itself, then spreading out the blank to 'an H form, with the sides to be bellows-folded spread out, folding said sides down upon themselves about their central longitudinal line, opening the diamond out again, and finally foldingand pasting down the ends of the diamond to complete the bag.

EDIVARD E. CLAUSSEN. 

